Seiko Cal. 7137 - 449

The 7137-449 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 7137 caliber with 36j jewels beating at 36,000 bph, it delivers a 65 hours power reserve. [seikata-wm-f342bcc7773a]

Also known as: Tuna, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

42mm

Case Thickness

12.7mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

150m

Dial Color

White

Jewels

36j

Frequency

36,000 bph

Power Reserve

65 hours

Year

1977

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